I agree, my setup from GWSExpert proves a bit sluggish and not up to the expected peformance of a brushless. The motors seem to strain at full power and the battery gets hotter than I care for. Throttle management is imperative and flying in a stiff wind is not recommended. I will provide additional passive cooling and see how that helps. The next size up from GWSE provides twice the thrust at 16oz. We'll see how that stands up. OR I'll pay a visit to eflightline.com.